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Topic: Space Thread (Read 509419 times)
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calapine
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Hurricane Harvey and the benefit of (Synthetic Aperture) Radar satellites:
This is how the satellites from DigitalGlobe see the disaster zone as of 29th August: (Background: DigitalGlobe is based in Denver, Colorado and (to the best of my knowledge) the first private company to provide high-res satellite images. This goes back to Clinton's (Bill not Hillary) Land Remote Sensing Policy Act which opened this field to commercial actors, a field that was up to then the domain of nation states. This forward looking decision is one the reasons American companies are market leaders in this business.) (If it its not obvious: Too many clouds!) In comparison a product of the Copernicus EMS rapid mapping service, showing the areas affected by flooding: Clouds are not an issue here. Why? The map is a composite. The static (optical) satellite picture, incidentally 2016 DigitalGlobe data, is overlayed with radar (peeking through the clouds) information by the 4 satellites of COSMO-Skymed ( Constellation of small Satellites for Mediterranean basin Observation) from the Italian Space Agency. Which produces pictures like the one below. The island of Giglio with the capsized Costa Concordia, beached by Captain Schettino, visible on the right: The process of creating these maps is not automatic yet, which is where Copernicus Earth Observation programme in comes in, of which one part is the Copernicus Emergency Management Service, of which a small part is the rapid mapping service, which can be activated on short notice when disasters hit. AkA "Where does my tax money go?"The center of Copernicus are the Sentinels. The name of 6 families of satellites (in orbit now / being developed) with different focus (optical, radar, land, air, sea...) and supplemented by "contributing missions" of which COSMO Skymed is one. An informative but admittedly somewhat PR-y video explaining the Sentinels: THE COPERNICUS PROGRAMME
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« Last Edit: September 01, 2017, 10:29:19 AM by calapine »
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Restoration is a perfectly valid school of magic!
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MahrinSkel
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When she crossed over, she was just a ship. But when she came back... she was bullshit!
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Good to have you back, I have missed your updates in this thread.
--Dave
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--Signature Unclear
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calapine
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Freshly baked space ship, straight out of the atmospheric oven. It doesn't look like it but inside are 3 people, one of which Peggy Whitson who now, with 665 days away from Earth I total, more time in space than any other woman worldwide and any other American Astronaut. And Herr the landing itself:
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« Last Edit: September 04, 2017, 04:55:54 AM by calapine »
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Restoration is a perfectly valid school of magic!
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calapine
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Restoration is a perfectly valid school of magic!
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satael
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Teleku
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https://i.imgur.com/mcj5kz7.png
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Wow, I had totally forgotten that it was still up there taking pictures. Amazing run! And things have come full circle, as in the very post of this thread, I talked about how SpaceX was doing the second launch ever of the Falcon 9, and that the Air Force's secret space ship had landed by itself for the first time. Well, turns out last week Space X launched that very same space plane back into space on a Falcon 9. http://money.cnn.com/2017/09/07/technology/spacex-launch-irma/index.htmlWe still have no idea what its doing up there.
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"My great-grandfather did not travel across four thousand miles of the Atlantic Ocean to see this nation overrun by immigrants. He did it because he killed a man back in Ireland. That's the rumor." -Stephen Colbert
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calapine
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Restoration is a perfectly valid school of magic!
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calapine
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Solely responsible for the thread on "The Condom Wall."
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Restoration is a perfectly valid school of magic!
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Shannow
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Damnit just came here to post that.
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Someone liked something? Who the fuzzy fuck was this heretic? You don't come to this website and enjoy something. Fuck that. ~ The Walrus
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Mandella
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And you beat me to it too. Calapine on the ball today! But I still wanted to see video of BulgariaSat's weird landing, although technically not a crash it came pretty close.
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« Last Edit: September 14, 2017, 08:59:46 AM by Mandella »
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Lucas
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Further proof that Italians have suspect taste in games.
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I'm kinda teary: 20 years ago in October I was in front of my monitor, watching Cassini depart from Earth during a NASA live streaming, through an ISDN line and what was a very different World Wide Web, in-between Ultima Online playing sessions (hey, it was released only 20 days or so before :D) . What a spectacular mission (and a great achievement by all the parties involved, considering we're talking about technologies developed in the late eighties, after all) this has proven to be
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" He's so impatient, it's like watching a teenager fuck a glorious older woman." - Ironwood on J.J. Abrams
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satael
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Slayerik
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"I have more qualifications than Jesus and earn more than this whole board put together. My ego is huge and my modesty non-existant." -Ironwood
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Count Nerfedalot
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those are pretty, but I really prefer the more subtle color enhanced pictures, where the saturation and contrast of the existing colors is boosted rather than some of those crazy made-up combos
and Cassini's end made me tear up a little.
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Yes, I know I'm paranoid, but am I paranoid enough?
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calapine
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*slurps coffee not very gracefully* Soo.... the 68th International Astronautical Congress in Adelaide started today, thus there is going to be a wealth of space news in the next 4 days. The media highlight will surely be Elon Musk new Mars project presentation. But let's start it slowly with some images from Baikunor, that were shot just early today: That's just a selection of a 30+ photo slideshow, and I am not even sure I picked most the aesthetically pleasing ones. Here is the rest. Not much to say about the launch, a commercial communication satellite called AsiaSat 9, but here it is: Here is it with the dishes unfolded but to see it's true form you need to add the massive solar panels: I am still impressed by these big birds.
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« Last Edit: September 25, 2017, 09:57:40 AM by calapine »
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Restoration is a perfectly valid school of magic!
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calapine
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Some minor news:
Falcon Heavy remains the eternal space Godot. Launch now in 2019 (was: Nov 2018)
JWST is goign to launch in 2019, not October 2018. This isn't due the telescope but the result of a launch window conflict with BepiColombo who which is scheduled at the same month. JWST has more potentially launch windows than BepiColombo, who is flying all the way to Mercury, this it getting first preferences here.
NASA and Roscosmos released a joint statement regarding an ISS-follow on station in lunar orbit.
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« Last Edit: September 27, 2017, 06:30:05 AM by calapine »
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Restoration is a perfectly valid school of magic!
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calapine
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« Last Edit: September 27, 2017, 10:28:18 AM by calapine »
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Restoration is a perfectly valid school of magic!
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calapine
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GIF showing the difference that adding a 3rd detector makes:
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Restoration is a perfectly valid school of magic!
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Khaldun
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There is something so hard about thinking through this. An event, 1.8 billion years ago. So we detect it now, but...that's kind of like detecting evidence of geological events on Earth 1.8 billion years ago, right? It's a precondition of the Earth we live on today. The thing that is hard about that conceptually for me is: we live on the same Earth with geologies that are 1.8 billion years ago. E.g., the consequence of ancient events is still a constitutive part of our world, it's visible in the landscape of Canada and Australia and Greenland and a few other places. But what's happening now in places that generated those kinds of strong signals of gravitational waves 1.8 billion years ago that is constituting our present cosmological reality?
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pxib
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But what's happening now in places that generated those kinds of strong signals of gravitational waves 1.8 billion years ago that is constituting our present cosmological reality? The universe is currently expanding at 68 kilometers per second per megaparsec. 1.8 billion light years is 550 megaparsecs, so theoretically the space between us is expanding at 37,000km every second. "But wait," someone says, "wouldn't it have been expanding like that for 1.8 billion years? Wouldn't, indeed, it have been 2.1x10 21km closer back then? Since there are only 9.5x10 12 km in a light year, wouldn't we have been 220 million light years closer?" No, I reply, it actually involves calculus because the distance decreases in that time and, worse yet, the cosmological constant isn't constant. But it's even worse: 1.8 billion light years away, "now" depends upon your relative velocity to such an extent that you can theoretically change by years which events you're simultaneous with by jogging one direction and then the other. So what do you mean by "our" present cosmological relativity? Yours isn't even the same as mine.
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if at last you do succeed, never try again
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Strazos
Greetings from the Slave Coast
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The World's Worst Game: Curry or Covid
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There is something so hard about thinking through this. An event, 1.8 billion years ago. So we detect it now, but...that's kind of like detecting evidence of geological events on Earth 1.8 billion years ago, right? It's a precondition of the Earth we live on today. The thing that is hard about that conceptually for me is: we live on the same Earth with geologies that are 1.8 billion years ago. E.g., the consequence of ancient events is still a constitutive part of our world, it's visible in the landscape of Canada and Australia and Greenland and a few other places. But what's happening now in places that generated those kinds of strong signals of gravitational waves 1.8 billion years ago that is constituting our present cosmological reality?
Think of it like the black holes threw us a ball across a field, except we don't know they threw the ball until it's right on top of us. In the meantime, they walked away and had a sandwich or something. We have no idea what's going on over there, or if they've thrown us another ball, because we cannot see it until it's right in our face. So yes, what we've detected is what happened in that area of space about 1.8 billion years ago. Anything that happened subsequent to that we will begin to see...though with those kinds of forces, there might not be much left to see for the next billion years or so.
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Fear the Backstab! "Plato said the virtuous man is at all times ready for a grammar snake attack." - we are lesion "Hell is other people." -Sartre
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Bungee
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Yeah, the actual space component is something that seems to get overlooked with those kinds of events. It's 1.8 billion years ago from this "point" in time and 1.8 billion light years away from this "point" in space, too. The universe has changed a lot in 1.8 billion years. And we have no idea how it changed and where/when.
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Freedom is the raid target. -tazelbain
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Merusk
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Consider that invertebrate multi-cellular life began on earth 600 million years ago. These events happened 2x that plus another 300 million years in Earth's life.. plants had barely formed. My "just tack on 300m years" is a span of time larger than the gulf that separates us from the dinosaurs. http://www.pindex.com/uploads/post_images/original/image_6245.jpgSpace and time are fucking HUUUUUUUGE.
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The past cannot be changed. The future is yet within your power.
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MahrinSkel
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When she crossed over, she was just a ship. But when she came back... she was bullshit!
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"Space is big. You just won't believe how vastly, hugely, mind- bogglingly big it is. I mean, you may think it's a long way down the road to the chemist's, but that's just peanuts to space."
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--Signature Unclear
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calapine
Terracotta Army
Posts: 7352
Solely responsible for the thread on "The Condom Wall."
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Restoration is a perfectly valid school of magic!
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calapine
Terracotta Army
Posts: 7352
Solely responsible for the thread on "The Condom Wall."
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Move over RyanAir ElonAir is in town! Edit: I removed the screenshots, there is now a Youtube video SpaceX Airlines
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« Last Edit: September 29, 2017, 01:19:15 AM by calapine »
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Restoration is a perfectly valid school of magic!
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calapine
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Context: Elon Musk gave a speech at the International Astronautical Congress in Adelaide He also announced to replace Falcon 9, Falcon Heavy and Dragon with a the new, somwhat smaller BFR concept. Small here means 9 instead of 12 meter diameter, 106 instead of 122 m height, 31 instead of 21 Raptor engines. The new BFR is supposed to do everthing. From launching satellites, supplying a moon base to cargo transport to the ISS:
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« Last Edit: September 29, 2017, 01:09:09 AM by calapine »
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Restoration is a perfectly valid school of magic!
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Goumindong
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But what's happening now in places that generated those kinds of strong signals of gravitational waves 1.8 billion years ago that is constituting our present cosmological reality? The universe is currently expanding at 68 kilometers per second per megaparsec. 1.8 billion light years is 550 megaparsecs, so theoretically the space between us is expanding at 37,000km every second. "But wait," someone says, "wouldn't it have been expanding like that for 1.8 billion years? Wouldn't, indeed, it have been 2.1x10 21km closer back then? Since there are only 9.5x10 12 km in a light year, wouldn't we have been 220 million light years closer?" No, I reply, it actually involves calculus because the distance decreases in that time and, worse yet, the cosmological constant isn't constant. But it's even worse: 1.8 billion light years away, "now" depends upon your relative velocity to such an extent that you can theoretically change by years which events you're simultaneous with by jogging one direction and then the other. So what do you mean by "our" present cosmological relativity? Yours isn't even the same as mine. If your talking together (IE occupy roughly the same space at the same time while traveling the same speed in the same direction) then its close enough.
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calapine
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Politics about SLS aside this may well be in the Awesome Picture thread: SLS Core Stage pathfinder (= dummy stage to test procedures) arriving at NASA Michoud
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Restoration is a perfectly valid school of magic!
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Teleku
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https://i.imgur.com/mcj5kz7.png
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Wow, nice shot!
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"My great-grandfather did not travel across four thousand miles of the Atlantic Ocean to see this nation overrun by immigrants. He did it because he killed a man back in Ireland. That's the rumor." -Stephen Colbert
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Khaldun
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Yeah, what a great picture.
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Brolan
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That's why I come here for my dirty, dirty, space porn.
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RhyssaFireheart
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And just when I was looking for a new background for the work computer!
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Mandella
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Falcon Heavy remains the eternal space Godot. Launch now in 2019 (was: Nov 2018)
Officially, it's just bumped to December 2017. (Also, I think you might be living a year ahead, or I'm a year behind -- it is still 2017 right?) And speaking of living ahead, I think Elon wishes he'd just cancelled the Heavy a while ago. It's already obsolete in his mind, and he's just going to manufacturer a few to satisfy contractual obligations -- he's apparently already tooling up to produce the BFR exclusively. He is honest to gods going to make rockets as reusable as airplanes, or go broke trying.
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calapine
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Falcon Heavy remains the eternal space Godot. Launch now in 2019 (was: Nov 2018)
Officially, it's just bumped to December 2017. (Also, I think you might be living a year ahead, or I'm a year behind -- it is still 2017 right?) I was going by unoffical info. And considering that the next CRS flight to the ISS is now scheduled for December it seems to be a pretty safe bet. But yes, I was already one year ahead in my head and meant to say 2018. --- How to launch a cubesat, the Russian way. This just an outtake from a longer Roscosmos 360° ISS EVA video. Well worth watching. First time in the Universe: Spacewalk filmed in 360
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Restoration is a perfectly valid school of magic!
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